Five map symbol used in the guided​

While doing your research, all of the following would be good secondary sources to use to develop a general overview about the vietnam war, except: a. the encyclopedia britannica b. an interview with a veteran of the war c. a textbook on the history of the 20th century d. an online resource such as ‘wikipedia. org’ or ‘’

What is the best way to combine these sentences?

Which of the following is most likely to influence the plot of a story